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Firex Plug-In Carbon Monoxide, Propane, Natural and Explosive Gas Detector with 9V Battery Backup and Digital Display

  • Carbon monoxide and gas alarm plugs directly into wall outlet
  • 9V battery backup for protection even during power outages
  • Digital display updates CO level in PPM every 15 seconds
  • See More Details

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Product Overview

Ten years, zero worries, Kidde 10-Year Worry-Free carbon monoxide alarms

10-Year Worry-Free by Kidde

Ten years. No battery changes. Zero worries.

Advanced alarms, Kidde FireX carbon monoxide

FireX by Kidde

Install confidence with advanced alarms from a world leader in fire safety.

Home fire safety basics, Kidde Code One carbon monoxide alarms

Code One by Kidde

Cover the basics of home fire safety.

Identify current power situation, choose the right carbon monoxide alarm

Know Your Power Source

Identifying your current power situation is an essential step in choosing the right alarm for each room.

No wires, carbon monoxide alarms run only on batteries

Battery-Powered Alarms

No wires – runs only on batteries. Easy to install. Works during a power outage.

Carbon monoxide alarms run on your home's electricity, battery backup during outages

Hardwired Alarms

Runs on your home’s electricity. Includes battery backup for protection during power outages.

Carbon monoxide alarms can be installed in any outlet

Plug-In CO Alarms

Carbon Monoxide alarms can be easily installed in any outlet and include a replaceable battery or 10-year battery back-up.

Protection from a hazard you can't see, smell, or taste

Protect Your Family

How do you protect your family from a hazard you can’t see, smell or taste?

Eliminates late-night carbon monoxide alarm battery chirps, $40 in savings

10-Year Longlife

No more late-night battery chirps! Save up to $40 over the life of the alarm.

Carbon monoxide alarm voice alert, announces danger

Voice Alarm

Voice alert and loud alarm announce danger.

Continuous carbon monoxide monitoring

Digital Display

Provides continuous monitoring of CO levels.

Carbon monoxide alarm pathway illumination

Safety Light

Helps illuminate pathway to safety.

LED light alerts condition of the carbon monoxide alarm

LED Light Alerts

Alerts to the condition of the alarm – green for normal, red for alarm, amber for error.

The Kidde KN-COEG-3 AC powered, plug-in CO and explosive gas alarm protects you and your family from 2 deadly threats. The KN-COEG-3 includes 9-Volt battery back up that provides protection during a power outage, when AC-only units cannot provide protection. By pressing the Peak Level Button you can see the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous digital display shows you the level of carbon monoxide (if any) the unit is sensing as well as if gas is present. The gas sensor is a metal oxide sensor designed to detect natural gas (methane) or propane.

Info & Guides

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Firex Plug-In Carbon Monoxide, Propane, Natural and Explosive Gas Detector with 9V Battery Backup and Digital Display
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BrandKiddeKiddeKiddeKidde
NameFirex Plug-In Carbon Monoxide, Propane, Natural and Explosive Gas Detector with 9V Battery Backup and Digital DisplayUltra-Sensitive Battery Operated Carbon Monoxide Detector with Digital DisplayFirex Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup and Digital Display10 Year Worry-Free Sealed-In Lithium Battery Carbon Monoxide Detector with Digital Display (2-Pack)
Price
Ratings
(305)
(39)
(56)
(364)
Power SourcePlug-InBatteryHardwiredBattery
Alarm/Detector FeaturesBattery Back-Up,Digital displayDigital display,Hush FeatureBattery Back-Up,Digital display,Hush Feature,Interconnected10-Year Battery,Digital display,Hush Feature,Tamper Resistant,Value Pack
Alarm TypeCarbon MonoxideCarbon MonoxideCarbon MonoxideCarbon Monoxide
Pack Size1112
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Specifications

Dimensions

Product Depth (in.)
1.8
Product Height (in.)
6.1
Product Width (in.)
3.8

Details

Alarm Type
Carbon Monoxide
Alarm/Detector Features
Battery Back-Up,Digital display
Battery Type Required
9-volt
Commercial/Residential
Residential
Connector/Contact Type
None
Fixed or portable
Fixed
Included
Batteries
Pack Size
1
Power Source
Plug-In
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
UL Listed

Questions & Answers

95Questions30Answers

Is this product date sensitive? Another words is it better to get one with the latest date of man...

Asked by Vincent March 24, 2021
2
Answers

Hello Vincent, These units should be powered up within the first two years after date of manufacturing. The sensor dissipates over time, so anything older than 2 years may not last the full 7-years.

Can this product detect burning rubber fumes?

Asked by DK February 10, 2021
3
Answers

It will detect the Carbon Monoxide in he fumes.

When you plug this into a duplex outlet, do you still have use of the other plug, or does this un...

Asked by IMHO January 9, 2021
5
Answers

I can use both plugs; one is for a night light.

I gave this unit as a gift, but was quickly disconnected because of intermittent chirping. What i...

Asked by SEANinNewMexico December 31, 2020
2
Answers

The chirping is an indication that the 9V battery needs to be replaced.

Why it's beeping and showing 97

Asked by Sevba December 24, 2020
3
Answers

There's (2) reasons. 1- It may be detecting some type of gas. 2- the BACK-UP battery may need to be replaced.

Does the ac plug separate from the unit orbit hardwired m? I want to use this in an area where I...

Asked by diymike October 24, 2020
4
Answers

It has a cord, or you can plug directly into the outlet. Battery backup.

Where on a wall do you install this unit. Higher near ceiling or at an outlet lower where most o...

Asked by Les September 28, 2020
3
Answers

The ideal place is 5ft above the floor. But since you don't normally have outlets at this level, use the ones near the floor.

what dose it mean when it says end

Asked by Bear September 23, 2020
3
Answers

The detector may be at its end of life (10 years). If so it needs to be replaced.

Does Kidde have a similar version of this device with no plug in. Just the 10 year L-ion battery...

Asked by tom153 September 17, 2020
2
Answers

Yes

Does this detector keep a log of its findings?

Asked by Taylor820 September 9, 2020
3
Answers

No

Firex Plug-In Carbon Monoxide, Propane, Natural and Explosive Gas Detector with 9V Battery Backup and Digital Display - page 2

Customer Reviews

  • 4.4
    out of 305 reviews
  • 86% recommend this product
Filter by:
Showing 1-10 of 305 reviews
My first Kidde Plug-In Carbon Monoxide and Explosive Gas Detector with 9V Battery Backup and Digi...
My first Kidde Plug-In Carbon Monoxide and Explosive Gas Detector with 9V Battery Backup and Digital Display lasted almost 8 years and comes with a 5 year warranty. This is my 2nd unit. I like it since it not only detects carbon monoxide but also propane and natural gas which many others do not. I also like that it can operate using AC power or 9v battery. It can also be mounted on a wall. I highly recommend and hope it will still be available when this one reaches end-of-life in 8 or 9 years. Well worth the money for peace of mind and safety features.
by Steve
5 people found this helpful
Product meets all expectations except color. All photos show detector in white. Store only offe...
Product meets all expectations except color. All photos show detector in white. Store only offered in gray. Still appears to function well, just less visually appealing.
by Illini72
I only gave a five-star review despite the fact that there is no easy practical way to test this ...
I only gave a five-star review despite the fact that there is no easy practical way to test this device for actual function using real gas or CO. Set-up was easy and it appears to be functioning correctly. It is installed in the home of an elderly couple who have just recently converted to an LGP kitchen range. Hopefully this detector will never be needed, but it does provide additional peace of mind protection should a problem arise with the range or they accidentally leave a vehicle running in the attached garage. Big plus is that the alarm siren is loud and at a pitch even people with considerable hearing damage as myself can hear easily.
by MarkKw
3 people found this helpful
Easy just plug in
Easy just plug in
by Tootsy
So far so good.
So far so good.
by MiniMimi
Replaced my old alarms and really like the function of this combination alarm have 2.
Replaced my old alarms and really like the function of this combination alarm have 2.
by NataliaML59
Great Product!`
This was bought to replace an ancient Nighthawk that we bought back in the late 90s early 2000s. The explosive gas detection helped with peace of mind when we bought and moved an old farm house and were not sure the old appliances were safe. Great device!
by Louis
4 people found this helpful
A good value and it works
I purchased this unit after my wife woke me up and told me she thought she smelled gas. After being up the rest of the night assuring her she didn’t I drove to Home Depot and picked up this combination Gas/Carbon Monoxide detector unit. I tested it with an open gas valve and it works well. The alarm emits a very loud piercing blast that is sure to wake up even the soundest sleeper. Having an alkaline 9 volt battery (included) backup; it can be unplugged and moved from room to room for testing. You can plug it right into a 110 volt outlet or slide out a built in stand and sit it on the counter. I have used a Nighthawk Carbon Monoxide detector for several years with no problems. In my opinion this combination unit is a very small price to pay for a good night of sleep.
by JAMEST
28 people found this helpful
2 monitors in one
An easy, no brain er to protect your family. I read the instructions to know what to expect and plugged it in. That simple. Yes, there is a shelf life and I'll have to replace it in years to come, but I'm fine with that. I really like that it is outside my HVAC closet monitoring to two items that concern me at that location.
by baltimorebill
2 people found this helpful
I don't want to die of bad gas!
Plugs into the wall socket. A little large. Seems to be good quality.
by Checkmate222
Showing 1-10 of 305 reviews